Bithermal Heat Exchanger Fagor Ecoplus FEB 20E Ref. MU1202700
If you notice that the water is lukewarm, there are temperature fluctuations, or the heating and domestic hot water circuits are mixing, you may need the Fagor Ecoplus FEB 20E Heat Exchanger Ref. MU1202700. This part is responsible for heating both circuits simultaneously in a single body. It is installed in models such as the Ecoplus FEB-20E, FA-20E, and FE-20E from the Fagor brand, among others. Replacement is recommended when the mentioned symptoms occur, as it indicates a fault in the heat exchanger.
VAT included
Consult via WhatsAppFagor boilers compatible with the reference MU1202700
Bithermal heat exchanger with reference MU1202700. Three confirmed compatibilities: Ecoplus FEB-20E and FA-20E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Fagor Ecoplus FEB-20E | Fagor | Contrasted |
| Fagor FA-20E | Fagor | Contrasted |
| Fagor FE-20E | Fagor | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if the part number MU1202700 is the one for your boiler.
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Find the reference printed on the installed part and check whether it matches the catalogue reference MU1202700. If it is not visible, do not identify the part by its shape alone.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Symptoms and faults that the bitermal heat exchanger MU1202700 resolves.
The bivalent heat exchanger transfers heat to heating and domestic hot water. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The hot water comes out in intervals or stays lukewarm even if you raise the temperature.
Cause: The double heat exchanger distributes heat between heating and domestic hot water; if it loses efficiency due to scale, the hot water is the first to be affected.
Check the pressure of the installation and the cold water inlet filter; if they are fine and the problem persists, the heat exchanger may be failing.
- 02
The radiators are not heating as they used to, even though the boiler is on and there are no faults.
Cause: A double-circuit boiler with a heat exchanger reduces the water flow in heating as well, not just in domestic hot water.
Bleed the radiators and check the circuit pressure before considering the heat exchanger; if they remain cold after bleeding, the heat exchanger is suspect.
- 03
Water or moisture appears at the base of the boiler, near the heat exchanger.
Cause: Lime and wear over the years affect the gaskets and the finned body, causing water leaks.
Dry the area well, turn on the boiler, and observe for 10-15 minutes to see if it starts to drip again at that point before confirming it.
- 04
A bubbling or vibrating noise is heard when the boiler heats water.
Cause: The accumulated scale in the finned body narrows the water passage and generates turbulence that sounds like noise.
Check the hardness of the water in your area and if you have a water softener; a new noise after a long time without maintenance may indicate this problem.
These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.
Data sheet for the Fagor MU1202700 double heat exchanger.
- Catalogue reference
- MU1202700
- Brand
- Fagor
- Type of part
- Bithermic heat exchanger
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Frequently asked questions about the bivalent heat exchanger MU1202700
Does this double heat exchanger fit the Fagor Ecoplus FEB-20E?
What fault indicates that the bivalent heat exchanger of the Fagor FA-20E needs to be replaced?
What does the bivalent heat exchanger do in the Fagor FE-20E?
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